The Magpul® B.A.D. Lever™ (Battery Assist Device is extended bolt release to right side of the weapon system that allows the shooter to keep his hand in the ready position on the pistol grip
It designed to considerably improve the speed and efficiency of Airsoft M4/M16 bolt catch
Fit for most WE M4/M16 Series Gas Blow Back Rifle & Systema PTW Airsoft AEG
Easy to install and remove—no weapon disassembly required

Remarks: Due to variances in manufacturer specs, some GBB rifles may require slight adjustment to the Lever for proper use.

Material : Aluminum